Specifactions : Hardened Saw Steel: For extra strength- Diamond Blade: For longer life than ordinary blades- Max RPM: 13200 rpm- Arbor Size: 5/8"Caution:- Do Not Use This Wheel For Applications Other Than Those Specified- This Diamond Wheel Can Be Used Only For Marble CUTTER And For Straight Cutting.- Do Not Use This For Curve Cutting Or Inclination Cutting- Carefully Read The Handling Instructions Of The Power Tools For Which This Diamond Wheel Is Be Used.